Inventor
OKADA HITOSHI
40 patents
⚠️ This page may combine multiple inventors who share the name “OKADA HITOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CLARION CO LTD
17 patentsUS4785362ANov 15, 1988
Driving force branching gear mechanism
CLARION CO LTD20 citations81
US4899951AFeb 13, 1990
Braking mechanism for use in a magnetic recording apparatus
CLARION CO LTD21 citations80
US4964589AOct 23, 1990
Mode changing mechanism for a tape player
CLARION CO LTD14 citations74
US4586096AApr 29, 1986
Cassette loading/ejecting device
CLARION CO LTD13 citations74
US4511940AApr 16, 1985
Tape player having motor-driven tape-pack loading mechanism
CLARION CO LTD10 citations74
US4430680AFeb 7, 1984
Reciprocating member control mechanism in tape player
CLARION CO LTD8 citations74
US4423445ADec 27, 1983
Clutch system in a tape player
CLARION CO LTD14 citations74
US4403265ASep 6, 1983
Power loading/unloading mechanism for tape record/playback apparatus
CLARION CO LTD9 citations74
US4227224AOct 7, 1980
Cassette tape recording/reproducing apparatus
CLARION CO LTD15 citations74
US4224647ASep 23, 1980
Magnetic tape-record/playback apparatus
CLARION CO LTD10 citations74
US4458276AJul 3, 1984
Magnetic tape recording/reproducing apparatus with eject spring set by tape drive motor
CLARION CO LTD2 citations63
US4450492AMay 22, 1984
Interlocking gear control mechanism in magnetic tape recording/playing apparatus
CLARION CO LTD2 citations63
US4423847AJan 3, 1984
Tape reel driving mechanism
CLARION CO LTD3 citations63
US4422589ADec 27, 1983
Friction transmitting apparatus
CLARION CO LTD6 citations63
US4209812AJun 24, 1980
Tape player
CLARION CO LTD6 citations63
US5031056AJul 9, 1991
Tape tension mechanism
CLARION CO LTD5 citations60
US4939602AJul 3, 1990
Cassette holder mechanism
CLARION CO LTD0 citations41
SONY CORP
14 patentsUS5530336AJun 25, 1996
Battery protection circuit
SONY CORP133 citations97
US4338683AJul 6, 1982
Videodisc player with constant turntable velocity
SONY CORP53 citations93
US5168487ADec 1, 1992
Optical recording and/or reproducing apparatus
SONY CORP11 citations74
US5083212AJan 21, 1992
Apparatus and method for recording a color television signal on an optical disc
SONY CORP15 citations74
US7283286B2Oct 16, 2007
Hologram recording/reproducing device and optical unit
SONY CORP9 citations73
US4972337ANov 20, 1990
Device for controlling rotation of a magnet used in a magneto-optical recording system
SONY CORP11 citations72
US4310912AJan 12, 1982
Servo system for recording and/or reproducing apparatus using a rotatable recording carrier
SONY CORP11 citations72
US4118736AOct 3, 1978
Method of and apparatus for controlling the optical reading of recorded information
SONY CORP14 citations71
US4747089AMay 24, 1988
Method and apparatus for focusing servo control
SONY CORP16 citations69
US4992652AFeb 12, 1991
Focus error detecting circuit for disk player
SONY CORP6 citations63
US6654323B2Nov 25, 2003
Method of tracking servo for optical pickup device
SONY CORP6 citations62
US7969846B2Jun 28, 2011
Hologram recording and reproducing device and method for recording hologram
SONY CORP0 citations52
US7652968B2Jan 26, 2010
Method and apparatus for recording and/or reproducing a hologram
SONY CORP0 citations42
US7006412B2Feb 28, 2006
Optical disk drive and optical disc recording method
SONY CORP0 citations42
OJI PAPER CO
3 patentsUS6413373B1Jul 2, 2002
Process for producing silica particles suitable for use as filler for paper
OJI PAPER CO13 citations79
US6264907B1Jul 24, 2001
Process for producing silica particles suitable for use as filler for paper
OJI PAPER CO13 citations71
US6685907B2Feb 3, 2004
Process for producing silica particles suitable for use as filler for paper
OJI PAPER CO2 citations60